PLEASE HELP DUE IN 10 MIN ITS A QUIZZ

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)